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本文介绍了一种可工作于基群速率的PCM数字电视电话的实验方案、它综合地利用了电视电话信号内在的相关特性、人眼、脑的生理特性和萤光物质的余辉特征等诸因素、采用伪随机点交织取样,PCM线性编码方式,可将1MHZ带宽的电视电话信号编码传输于基群速率、从而简单地获得了每象素1比特的压缩效果、为利用现有的市话电缆、微波接力等基群信道传输电视电话提供了现实可能性、
This paper presents an experimental scheme for a PCM digital TV telephone capable of operating at a base rate using a combination of inherent characteristics of the videophone signal, physiological characteristics of the human eye, the brain, and the afterglow characteristics of fluorescent substances , The use of pseudo-random point interleaving sampling, PCM linear encoding, the TV signal encoding 1MHZ bandwidth transmission at the base rate, and thus simply get a bit per pixel compression effect, in order to use the existing local telephone cable, Microwave relay and other basic group channel television transmission provides the possibility of reality,